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-rw-r--r--t/test-lib-functions.sh39
1 files changed, 39 insertions, 0 deletions
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index 6b3bbf9..92cf8f8 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -1263,3 +1263,42 @@ test_oid () {
fi &&
eval "printf '%s' \"\${$var}\""
}
+
+# Choose a port number based on the test script's number and store it in
+# the given variable name, unless that variable already contains a number.
+test_set_port () {
+ local var=$1 port
+
+ if test $# -ne 1 || test -z "$var"
+ then
+ BUG "test_set_port requires a variable name"
+ fi
+
+ eval port=\$$var
+ case "$port" in
+ "")
+ # No port is set in the given env var, use the test
+ # number as port number instead.
+ # Remove not only the leading 't', but all leading zeros
+ # as well, so the arithmetic below won't (mis)interpret
+ # a test number like '0123' as an octal value.
+ port=${this_test#${this_test%%[1-9]*}}
+ if test "${port:-0}" -lt 1024
+ then
+ # root-only port, use a larger one instead.
+ port=$(($port + 10000))
+ fi
+ ;;
+ *[^0-9]*|0*)
+ error >&7 "invalid port number: $port"
+ ;;
+ *)
+ # The user has specified the port.
+ ;;
+ esac
+
+ # Make sure that parallel '--stress' test jobs get different
+ # ports.
+ port=$(($port + ${GIT_TEST_STRESS_JOB_NR:-0}))
+ eval $var=$port
+}